Cisco Systems MGX 8230 1N Redundancy for the Cesm T1/E1, Cesm T1/E1 Illustrations, AX-SMB-8E1-LM

Chapter 2 Module and Service Descriptions

Frame Relay Service Modules

•A single T1/E1 CESM card can provide standby redundancy for all active CESM cards of the same type in the shelf (1:N redundancy), with SRM.

•CESM cards are supported by standards-based management tools, including Simple Network Management Protocol (SNMP), Trivial File Transfer Protocol (TFTP) for configuration and statistics collection, and a command-line interface. Cisco WAN Manager also provides full graphical user interface (GUI) support for connection and equipment management.

1:N Redundancy for the CESM T1/E1

Redundancy for the AX-CESM-8T1 and AX-CESM-8E1 is available through the MGX-SRM-3T3/C.

•1:N redundancy requires that the group contain one redundancy back card.

•The redundancy back card must be the special R-RJ45 version (AX-R-RJ48-8T1-LM or AX-R-SMB-8E1-LM).

For information on installation requirements, refer to the Service Resource Module, page 2-12. For configuration requirements, see the “Service Resource Module” section on page 6-49.

For instructions on how to use the CiscoView application to configure redundancy, refer to the CiscoView user-documentation.

Card Combinations

Acard set has an AX-CESM-8T1 or AX-CESM-8E1 front card and one of the following back cards:

•AX-RJ48-8T1-LM

•AX-R-RJ48-8T1-LM (for redundancy support)

•AX-RJ48-8E1-LM

•AX-SMB-8E1-LM

•AX-R-SMB-8E1-LM (for redundancy support)

CESM T1/E1 Illustrations

•Figure 2-24 on page 2-48shows the Front Cards for the Eight-Port CESM (T1 and E1).

•Figure 2-25 on page 2-49shows the RJ-48 and SMB Back Cards for the MGX-CESM-8T1E1.

LED Indicators for the Eight-Port CESM

The description of the LEDs on the eight-port CESM correspond to the illustration in Figure 2-24 on page 2-48.

Table 2-13 LED Indicators for Eight-Port CESM

Type of LED	Color	Meaning
PORT LEDs	Green	Green indicates the port is active.
	Red	Red indicates a local alarm on the port. Off indicates
		the port has not been activated (upped).
	Yellow	Yellow indicates a remote alarm on the port. Off
		indicates the port has not been activated (upped).
ACT LED (Active)	Green	On indicates the card set is in active mode.

	Cisco MGX 8230 Edge Concentrator Installation and Configuration
2-46	Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001